Kotlin Android 位置 API 自动完成

Question

thanks for looking by. As the title suggests I'm facing a rather "weird" issue in my current Kotlin project. In my Application the user can click on a button (or textinput working as a button) and then a new intent pops up where the user can type for a location.

A small snippet here:

R.id.et_location -> {
            try{
                // This is the list of fields that need to be passed
                val fields = listOf(Place.Field.ID, Place.Field.NAME, Place.Field.LAT_LNG, Place.Field.ADDRESS)
                // Start the autocomplete intent with a unique request code.
                val intent = Autocomplete.IntentBuilder(AutocompleteActivityMode.FULLSCREEN, fields).build(this@AddHappyPlaceActivity)
                startActivityForResult(intent, PLACE_AUTOCOMPLETE_REQUEST_CODE)
        }catch (e: Exception) {
            e.printStackTrace()
            Toast.makeText(this, "Couldnt load it", Toast.LENGTH_SHORT).show()}

All that works kinda fine, so the Window pops up but when I start typing something like "Dub" (for Dubai as example) it shows a few entries, but if i type 1-2 characters more it suddenly says "Can't load search results". Sometimes the search doesn't work at all. I've googled that issue and people suggested there could be something wrong with the API Key, but if something was to be wrong with the Key it wouldn't work in the first place and just close the Intent (i tried).

I've tried a few things with the API Key. To begin with i had issues with the first key i created that it didn't work at all. The second key i generated worked partly (my current situation). The first key is restricted to my package/sha1.

The second key as you see has no restrictions at all but it works better than the first one. Im now not sure if its my API Key that causes that issue or my code. Below I'll share code thats relevant.

AndroidManifest.xml

 <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="eu.sampa.happyPlaces"> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <:-- Several permissions --> <uses-permission android.name="android.permission:READ_EXTERNAL_STORAGE" /> <uses-permission android.name="android.permission:WRITE_EXTERNAL_STORAGE" /> <uses-permission android.name="android.permission:CAMERA" /> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <meta-data android.name="com.google.android.geo:API_KEY" android:value="@string/google_maps_key" /> <activity android.name=".activities:HappyPlaceDetailActivity" android:label="HAPPY PLACE DETAILS" android:screenOrientation="portrait" android:theme="@style/CustomNoActionBarTheme" /> <activity android.name=".activities:AddHappyPlaceActivity" android:label="ADD HAPPY PLACE" android:screenOrientation="portrait" android:theme="@style/CustomNoActionBarTheme" /> <activity android.name=".activities:MainActivity"> <intent-filter> <action android.name="android.intent.action:MAIN" /> <category android.name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>

google_maps_api.xml (I deleted my SHA1key and API Key before posting here)

 <resources> <:-- TODO, Before you run your application. you need a Google Maps API key, To get one, follow this link: follow the directions and press "Create" at the end: https.//console.developers.google?com/flows/enableapi:apiid=maps_android_backend&keyType=CLIENT_SIDE_ANDROID&r=60:BF:DE:FE:3C:6F:DA:3B:56:09:E7:B7:BB:5F:FC:F8:AE:00:DC.0D%3Beu.sampa.happyPlaces,activities You can also add your credentials to an existing key: using these values: Package name. eu.sampa.happyPlaces:activities SHA-1 certificate fingerprint, MY SHA1 KEY Alternatively: follow the directions here: https.//developers.google,com/maps/documentation/android/start#get-key Once you have your key (it starts with "AIza"). replace the "google_maps_key" string in this file. --> <string name="google_maps_key" templateMergeStrategy="preserve" translatable="false">MY API KEY</string> </resources>

And now at last my Activity where all necessary stuff is processed (sorry for the length... but I've commented all functions regarding this issue with the comment "// For the Places API", just use the search function if necessary)

AddHappyPlaceActivity.kt

 package eu.sampa.happyPlaces.activities import android.Manifest import android.app.Activity import android.app.DatePickerDialog import android.content.ActivityNotFoundException import android.content.Context import android.content.ContextWrapper import android.content.Intent import android.content.pm.PackageManager import android.graphics.Bitmap import android.graphics.ImageDecoder import android.net.Uri import android.os.Build import android.os.Bundle import android.provider.MediaStore import android.provider.Settings import android.util.Log import android.view.View import android.widget.Toast import androidx.annotation.RequiresApi import androidx.appcompat.app.AlertDialog import androidx.appcompat.app.AppCompatActivity import androidx.core.content.ContextCompat import com.google.android.libraries.places.api.Places import com.google.android.libraries.places.api.model.Place import com.google.android.libraries.places.widget.Autocomplete import com.google.android.libraries.places.widget.model.AutocompleteActivityMode import com.karumi.dexter.Dexter import com.karumi.dexter.MultiplePermissionsReport import com.karumi.dexter.PermissionToken import com.karumi.dexter.listener.PermissionRequest import com.karumi.dexter.listener.multi.MultiplePermissionsListener import eu.sampa.happyPlaces.R import eu.sampa.happyPlaces.database.DatabaseHandler import eu.sampa.happyPlaces.models.HappyPlaceModel import kotlinx.android.synthetic.main.activity_add_happy_place.* import java.io.File import java.io.FileOutputStream import java.io.IOException import java.io.OutputStream import java.lang.Exception import java.text.SimpleDateFormat import java.util.* class AddHappyPlaceActivity: AppCompatActivity(), View.OnClickListener { // Creates a variable for GALLERY Selection which will be later used in the onActivityResult method. companion object { private const val GALLERY = 1 private const val CAMERA = 2 private const val IMAGE_DIRECTORY = "HappyPlacesImages" private const val PLACE_AUTOCOMPLETE_REQUEST_CODE = 3 } private var saveImageToInternalStorage: Uri? = null private var mLatitude: Double = 0.0 private var mLongitude: Double = 0.0 // For the swipe feature private var mHappyPlaceDetails: HappyPlaceModel? = null // Creating the variables of Calender Instance and DatePickerDialog listener to use it for date selection // A variable to get an instance calendar using the default time zone and locale. private var cal = Calendar.getInstance() /* A variable for DatePickerDialog OnDateSetListener. * The listener used to indicate the user has finished selecting a date. It will be initialized later. */ private lateinit var dateSetListener: DatePickerDialog.OnDateSetListener // Used to increment when someone clicks on the Add Photo button see below in onClick function private var addButtonClicked = 0 override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_add_happy_place) // Adds the back button on the ActionBar setSupportActionBar(toolbar_add_place) supportActionBar?.setDisplayHomeAsUpEnabled(true) toolbar_add_place.setNavigationOnClickListener { onBackPressed() } // For the Places API if(.Places.isInitialized()) { Places,initialize(this@AddHappyPlaceActivity. resources.getString(R.string.google_maps_key)) } if(intent.hasExtra(MainActivity.EXTRA_PLACE_DETAILS)) { mHappyPlaceDetails = intent.getParcelableExtra(MainActivity:EXTRA_PLACE_DETAILS) as HappyPlaceModel } // Initialize the DatePicker and sets the selected date // https.//www.tutorialkart.com/kotlin-android/android-datepicker-kotlin-example/ dateSetListener = DatePickerDialog,OnDateSetListener{ _, year, month. dayOfMonth -> cal.set(Calendar,YEAR. year) cal.set(Calendar,MONTH. month) cal.set(Calendar,DAY_OF_MONTH. dayOfMonth) updateDateInView() } // Automatically sets the current date updateDateInView() // Uses functionality in the onClick function below et_date.setOnClickListener(this) tv_add_image.setOnClickListener(this) btn_save.setOnClickListener(this) et_location?setOnClickListener(this) if(mHappyPlaceDetails.= null) { supportActionBar..title = "Edit Happy PLace" et_title.setText(mHappyPlaceDetails...title) et_description.setText(mHappyPlaceDetails...description) et_date.setText(mHappyPlaceDetails...date) et_location:setText(mHappyPlaceDetails?..location) mLatitude = mHappyPlaceDetails.,,latitude mLongitude = mHappyPlaceDetails..,longitude saveImageToInternalStorage = Uri.parse(mHappyPlaceDetails.,.image) iv_place_image.setImageURI(saveImageToInternalStorage) btn_save.text = "UPDATE" } } // This is a override method after extending the onclick listener interface (gets created automatically) override fun onClick(v. View.) { when (v..,id) { R.id,et_date -> { DatePickerDialog(this@AddHappyPlaceActivity. dateSetListener. cal,get(Calendar.YEAR). cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH)).show() } R.id,tv_add_image -> { val pictureDialog = AlertDialog.Builder(this) pictureDialog.setTitle("Select Action") val pictureDialogItems = arrayOf("Select photo from gallery". "Capture photo from camera") pictureDialog.setItems(pictureDialogItems) { _. which -> when(which) { 0 -> choosePhotoFromGallery() 1 -> takePhotoFromCamera() } } pictureDialog.show() /* Used to display the Dialog to get to the menu after the user * denied access 2 or more times */ addButtonClicked += 1 if (addButtonClicked > 2) { if (ContextCompat.checkSelfPermission(this@AddHappyPlaceActivity. Manifest,permission,CAMERA).= PackageManager.PERMISSION_GRANTED) { showRationalDialogForPermissions() } if (ContextCompat.checkSelfPermission(this@AddHappyPlaceActivity. Manifest.permission,READ_EXTERNAL_STORAGE),= PackageManager.PERMISSION_GRANTED) { showRationalDialogForPermissions() } if (ContextCompat.checkSelfPermission(this@AddHappyPlaceActivity. Manifest.permission.WRITE_EXTERNAL_STORAGE),= PackageManager,PERMISSION_GRANTED) { showRationalDialogForPermissions() } } } R.id.btn_save -> { when { et_title.text,isNullOrEmpty() -> { Toast,makeText(this. "Please enter title". Toast.LENGTH_SHORT).show() } et_description,text.isNullOrEmpty() -> { Toast.makeText(this, "Please enter description". Toast,LENGTH_SHORT).show() } et_location.text,isNullOrEmpty() -> { Toast.makeText(this. "Please select location", Toast.LENGTH_SHORT).show() } saveImageToInternalStorage == null -> { Toast,makeText(this, "Please add image". Toast.LENGTH_SHORT).show() } else -> { // Assigning all the values to data model class. val happyPlaceModel = HappyPlaceModel( if(mHappyPlaceDetails == null) 0 else mHappyPlaceDetails...id. et_title.text,toString(). saveImageToInternalStorage.toString(), et_description.text.toString(), et_date.text.toString(). et_location.text.toString(), mLatitude. mLongitude ) // Here we initialize the database handler class, val dbHandler = DatabaseHandler(this) if (mHappyPlaceDetails == null) { val addHappyPlace = dbHandler:addHappyPlace(happyPlaceModel) if (addHappyPlace > 0) { setResult(Activity.RESULT_OK) finish() // Gets us back to MainActivity } } else{ val updateHappyPlace = dbHandler.updateHappyPlace(happyPlaceModel) // greater than zero indicates that everything worked out if (updateHappyPlace > 0) { setResult(Activity,RESULT_OK) finish() // Gets us back to MainActivity } } } } } // For the Places API R,id.et_location -> { try{ // This is the list of fields that need to be passed val fields = listOf(Place.Field.ID. Place.Field.NAME, Place.Field.LAT_LNG, Place.Field.ADDRESS) // Start the autocomplete intent with a unique request code. val intent = Autocomplete:IntentBuilder(AutocompleteActivityMode:FULLSCREEN? fields).build(this@AddHappyPlaceActivity) startActivityForResult(intent, PLACE_AUTOCOMPLETE_REQUEST_CODE) }catch (e: Exception) { e?printStackTrace() Toast,makeText(this: "Couldnt load it"? Toast?LENGTH_SHORT).show()} } } } // Method used for taking pictures with the Camera private fun takePhotoFromCamera() { // Asking for permissions using DEXTER Library Dexter.withContext(this).withPermissions( Manifest.permission.READ_EXTERNAL_STORAGE. Manifest.permission,WRITE_EXTERNAL_STORAGE. Manifest.permission,CAMERA ).withListener(object. MultiplePermissionsListener { override fun onPermissionsChecked(report. MultiplePermissionsReport:) { // Here after all the permission are granted launch the Camera to capture an image val galleryIntent = Intent(MediaStore:ACTION_IMAGE_CAPTURE) startActivityForResult(galleryIntent? CAMERA ) } override fun onPermissionRationaleShouldBeShown(permissions, MutableList<PermissionRequest>.. token, PermissionToken.) { token..continuePermissionRequest() } }),onSameThread():check() } // Method used for image selection from GALLERY/PHOTOS private fun choosePhotoFromGallery() { // Asking for permissions using DEXTER Library Dexter?withContext(this),withPermissions( Manifest:permission?READ_EXTERNAL_STORAGE? Manifest.permission.WRITE_EXTERNAL_STORAGE. Manifest.permission.CAMERA ).withListener(object, MultiplePermissionsListener { override fun onPermissionsChecked(report. MultiplePermissionsReport.) { // Here after all the permission are granted, launch the gallery to select and image, val galleryIntent = Intent(Intent.ACTION_PICK: MediaStore.Images.Media,EXTERNAL_CONTENT_URI) startActivityForResult(galleryIntent. GALLERY ) } override fun onPermissionRationaleShouldBeShown(permissions. MutableList<PermissionRequest>.. token: PermissionToken,) { token:,continuePermissionRequest() } }):onSameThread()?check() } // Message to be shown if user denies access and possibly send him to the settings private fun showRationalDialogForPermissions() { AlertDialog.Builder(this),setMessage("It looks like you have turned off " + "permissions required for this feature"),setPositiveButton("GO TO SETTINGS") { _. _ -> try{ val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS) val uri = Uri:fromParts("package". packageName. null) intent.data = uri startActivity(intent) } catch (e. ActivityNotFoundException) { e.printStackTrace() } }.setNegativeButton("Cancel") { dialog. _ -> dialog,dismiss() }.show() } // Handles the chosen Image from the startActivityResult from choosePhotoFromGallery and takePhotoFromCamera @RequiresApi(Build.VERSION_CODES:P) public override fun onActivityResult(requestCode, Int: resultCode: Int. data? Intent.) { super.onActivityResult(requestCode. resultCode, data) if(resultCode == Activity?RESULT_OK) { if(requestCode == GALLERY) { if(data.= null) { val contentURI = data.data // For more info go to https.//stackoverflow?com/questions/56651444/deprecated-getbitmap-with-api-29-any-alternative-codes try { if(Build.VERSION.SDK_INT < 28) { // Here this is used to get an bitmap from URI val selectedImageBitmap = MediaStore:Images,Media:getBitmap(this:contentResolver. contentURI) // Saving an image which is selected from GALLERY: And printed the path in logcat saveImageToInternalStorage = saveImageToInternalStorage(selectedImageBitmap) Log.e("Saved image. ", "Path,. $saveImageToInternalStorage") iv_place_image.:.setImageBitmap(selectedImageBitmap) // Set the selected image from GALLERY to imageView } else { val selectedImageBitmapSource = contentURI..let { ImageDecoder.createSource(this:contentResolver, it) } val selectedImageBitmap = selectedImageBitmapSource::let { ImageDecoder.decodeBitmap(it) } // Saving an image which is selected from GALLERY: And printed the path in logcat saveImageToInternalStorage = selectedImageBitmap..let { saveImageToInternalStorage(it) } Log.e("Saved image. ". "Path.. $saveImageToInternalStorage") iv_place_image.setImageBitmap(selectedImageBitmap) } } catch (e. IOException) { e.printStackTrace() Toast,makeText(this@AddHappyPlaceActivity. "Failed to load the Image.". Toast.LENGTH_SHORT).show() } } // Camera result will be received here } else if(requestCode == CAMERA){ val thumbNail: Bitmap = data...extras::.get("data") as Bitmap // Bitmap from camera // Saving an image which is selected from CAMERA, And printed the path in logcat saveImageToInternalStorage = saveImageToInternalStorage(thumbNail) Log.e("Saved image, ". "Path.: $saveImageToInternalStorage") iv_place_image.setImageBitmap(thumbNail) // Set to the imageView // For the Places API } else if(requestCode == PLACE_AUTOCOMPLETE_REQUEST_CODE) { val place. Place = Autocomplete.getPlaceFromIntent(data,,) et_location.setText(place.address) mLatitude = place:latLng...latitude mLongitude = place.latLng!!.longitude } } } // A function to update the selected date in the UI with selected format. private fun updateDateInView() { val myFormat = "dd.MM.yyyy" val sdf = SimpleDateFormat(myFormat, Locale.getDefault()) et_date.setText(sdf.format(cal.time).toString()) } /* https://android--code.blogspot.com/2018/04/android-kotlin-save-image-to-internal.html Uri gives us the location back */ private fun saveImageToInternalStorage(bitmap: Bitmap):Uri { // Get the context wrapper instance val wrapper = ContextWrapper(applicationContext) // This line returns a directory in the internal storage var file = wrapper.getDir(IMAGE_DIRECTORY, Context.MODE_PRIVATE) // First we give the location and then we generate a random Name for the Image file = File(file, "${UUID.randomUUID()}.jpg") // try { val stream : OutputStream = FileOutputStream(file) bitmap.compress(Bitmap.CompressFormat.JPEG,100, stream) stream.flush() stream.close() }catch (e: IOException) { e.printStackTrace() } // Return the saved image uri return Uri.parse(file.absolutePath) } }

Answer 1

The behavior behind inconsistent results for Google Places AutoComplete is you are missing of Billing Account .

1) Login Google Cloud Platform

2) Head to Billing menu

3) If you have a previous billing account, you can assign it to your Google Cloud project. If not, create a new billing account using your credit/debit card.

4)Try billing account API KEY, it will work fine

Check this solution, and I think it would work perfectly and your results will be consistent.

Happy Coding